It is scary that these events are on the increase and that nearly twenty percent of them are caused by human activity. These events send us a warning about the state of the environment. We must take heed of this warning and prevent further contamination of the environment if we are to avert increases in such events.

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New research reveals that over the past 70 years animal mass die-offs have been increasing among birds, fish and marine invertebrates. Researchers are now speculating whether this might be another effect of global environmental changes.